From: Andreas Larsson Date: Wed, 9 Nov 2016 09:43:05 +0000 (+0100) Subject: sparc32: Fix inverted invalid_frame_pointer checks on sigreturns X-Git-Tag: v3.18.133~52 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0c9c58b95e9f7c5687ca8b6227ce735d269c0585;p=thirdparty%2Fkernel%2Fstable.git sparc32: Fix inverted invalid_frame_pointer checks on sigreturns commit 07b5ab3f71d318e52c18cc3b73c1d44c908aacfa upstream. Signed-off-by: Andreas Larsson Signed-off-by: David S. Miller Cc: Guenter Roeck Signed-off-by: Greg Kroah-Hartman --- diff --git a/arch/sparc/kernel/signal_32.c b/arch/sparc/kernel/signal_32.c index 8492291424ab5..d6ab14c2353d4 100644 --- a/arch/sparc/kernel/signal_32.c +++ b/arch/sparc/kernel/signal_32.c @@ -89,7 +89,7 @@ asmlinkage void do_sigreturn(struct pt_regs *regs) sf = (struct signal_frame __user *) regs->u_regs[UREG_FP]; /* 1. Make sure we are not getting garbage from the user */ - if (!invalid_frame_pointer(sf, sizeof(*sf))) + if (invalid_frame_pointer(sf, sizeof(*sf))) goto segv_and_exit; if (get_user(ufp, &sf->info.si_regs.u_regs[UREG_FP])) @@ -150,7 +150,7 @@ asmlinkage void do_rt_sigreturn(struct pt_regs *regs) synchronize_user_stack(); sf = (struct rt_signal_frame __user *) regs->u_regs[UREG_FP]; - if (!invalid_frame_pointer(sf, sizeof(*sf))) + if (invalid_frame_pointer(sf, sizeof(*sf))) goto segv; if (get_user(ufp, &sf->regs.u_regs[UREG_FP]))